Question

A thin cylinder of mass 3kg :
and radius 140 mm is held
against a smooth wall by a
string of length 120 mm. Find
the tension in the string.

Answer 1

Answer:

Torque about centre line of cylinder  

=F×R

=(30×0.4)Nm

Angular acceleration =  

3×(0.4)  

2

 

30×0.4

​

 

=  

4

100

​

rad/s  

2

 

=25rad/s  

2

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